Research And Implementation Of Trajectory Prediction Method Of General Aircraft

With navigable areas opening,the number of domestic aircraft increases,contradictions between the limited spare resources and the increasing traffic increases prominently,so the opportunity of aircraft conflict between aircraft greatly increased, the controller's work increased.In order to ensure the aircraft's safety during flight, the aircraft's flight prediction and flight collision detection need be down,to help operator controlling the aircraft. Trajectory prediction can track aircraft's flight position in advance,and the conflict detection of aircraft and early warning management can ensure safe flight of the aircraft.Finally,general aircraft trajectory prediction system basically achieved in this this paper.This system is mainly forecast track the aircraft of flight missions in real-time,it can help user to avoid conflicts that is known or unknown. Experiment results show the availability of the trajectory prediction method of general aircraft.Firstly,this paper study the general trajectory prediction method of general aircraft:method based on aircraft model and method based on Kalman filter,analyzes and summarizes the advantages and disadvantages of their methods.And simply introduce the trajectory prediction system.Secondly,based on the original trajectory prediction method,proposed a trajectory prediction method based on aircraft model and filtering algorithm combination.By modeling the horizontal and vertical motion of aircraft,get the preliminary forecast data,then combined the track historical data and used filtering algorithms to get final forecast data.At the same time,it introduced the level and methods of the detect conflict about aircraft.Then,this paper design and implement the trajectory prediction system of general aircraft based on general aviation's unique flight characteristics,and ensure to complete the flight mission and the safety flight.The system has the following functions:1)track prediction:using the above prediction method track forecast track,predict the aircraft's flying in advance and displayed on an electronic map;2)conflict warning function:judged the predicted track data in conflict detection,if you find there is a risk then prompts the user a warning message;3)track playback function:users can view the aircraft flight path according to their needs.Finally,in this paper,the trajectory prediction method and system baiscally achieved.This system is mainly forecast track the aircraft of flight missions in real-time,it can help user to avoid conflicts that is known or unknown.Experiment results show the availability of the trajectory prediction method of general aircraft.